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erastova [34]
3 years ago
5

The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by th

e distance between them. When a voltage of 112 V is put across the plates of such a capacitor an electric field strength of 1.1 kV/cm is measured. Write an equation that will let you calculate the distance d between the plates.
Physics
1 answer:
Dmitry [639]3 years ago
5 0

Answer:

d = V/E

Explanation:

From the definition, we can say that the electric field strength between the plates of a parallel plate capacitor is

E = v/d

where

E = electric field strength

V = potential difference

d = distance between the plates

On rearranging the equation and making d subject of the formula, we have

d = V/E

From the question, we're given that

V = 112 V

E = 1.12 kV/cm converting to V/m, we have 110000 V/cm

d = 112 / 110000

d = 0.00102 m

d = 1.02*10^-3 m

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Answer:

1.77 x 10^-8 C

Explanation:

Let the surface charge density of each of the plate is σ.

A = 4 x 4 = 16 cm^2 = 16 x 10^-4 m^2

d = 2 mm

E = 2.5 x 10^6 N/C

ε0 = 8.85 × 10-12 C2/N ∙ m2

Electric filed between the plates (two oppositively charged)

E = σ / ε0

σ = ε0 x E

σ = 8.85 x 10^-12 x 2.5 x 10^6 = 22.125 x 10^-6 C/m^2

The surface charge density of each plate is ± σ / 2

So, the surface charge density on each = ± 22.125 x 10^-6 / 2

                                                                 = ± 11.0625 x 10^-6 C/m^2  

Charge on each plate = Surface charge density on each plate x area of each plate

Charge on each plate = ± 11.0625 x 10^-6  x 16 x 10^-4 = ± 1.77 x 10^-8 C

7 0
3 years ago
How to know if two vectors are linearly independent
algol13

Answer:

Given a set of vectors, you can determine if they are linearly independent by writing the vectors as the columns of the matrix A, and solving Ax = 0.

Explanation:

5 0
2 years ago
Please help with this question​
kompoz [17]
The answer is unbalanced because the numbers 100n and 300n don’t equal each other. If the answer was balanced the numbers would have to equal each other. Also, the answer net force would only be the answer if we were adding the numbers. I hope this helped you! :)
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2 years ago
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A boat moves through the water with two forces acting on it. One is a 2.51×103 N forward push by the motor, and the other is a 1
telo118 [61]

Answer:

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Explanation:

We have given that the force by the motor F=2.51\times 10^3N=2510N

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So net force F_{NET}=2510-1880=630N

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According to newton's second law F=Ma, here M is mass and a is acceleration

So 630=1384.1\times a

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2 years ago
What is ionizing radiation, and why is it harmful? Give at least one example.
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Answer:

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Hope this helps!!

Have a nice evening :)

Explanation:

8 0
3 years ago
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